Self-gasifying petroleum gas burner



Dec. 25, 1956 A. VAN DER LEE SELF-GASIFYING PETROLEUM GAS BURNER Filed May 6, 1953 United States Patent '0 SELF-GASIFYING PETROLEUM GAS BURNER Albertus van der Lee, Eindhoven, Netherlands, assignor to Hartford National Bank and Trust Company, Hartford, Conn., as trustee Application May 6, 1953, Serial No. 353,316

Claims priority, application Netherlands July 14, 1952 2 Claims. (Cl. 158-62) The invention relates to a gas range or gas cooker, comprising a container for liquid fuel, more particularly petroleum, and a vaporiser for this fuel, with which communicate a plurality of jet ducts positioned opposite mixed gas ducts leading to burners, of which one can give oif the produced heat to the vaporiser. The latter burner is termed hereinafter the auxiliary burner. The assembly formed by the vaporiser, the burners and the auxiliary elements is termed the burner device.

Such burner devices are started by pre-heating the vaporiser, mostly by burning a quantity of spirit in a container below the auxiliary burner. When the vaporiser is sufliciently hot to convert the petroleum into gas, this is admitted to the auxiliary burner, which then maintains the temperature of the vaporiser at the correct value; Then the further burners can be started.

In such burner devices the petroleum smell produced when the burners start is often troublesome and the invention has for its object inter alia to reduce this smell.

The invention is based on the recognition of the fact that the said disadvantage is largely dueto too low a temperature of the mixed-gas ducts to the further bumers, so that in these ducts the petroleum gases can condensate.

According to the invention a cap is provided over the auxiliary burner, this cap collecting the hot gases produced by this burner and being provided with ducts to conduct these gases along the mixed-gas ducts of one or more of the burners.

In order that the invention may be readily carried into effect, it will now be described with reference to the accompanying drawing.

Fig. l is a diagrammatical front view of a burner device.

Fig. 2 is a sectional view taken on the line II-II of Fig. I, viewed in the direction of the arrows.

Figs. 3 and 4 are sectional views similar to that shown in Fig. 2 of slightly modified embodiments.

The device comprises a supply container 1 and a duct 2, having a stop valve 3, this duct communicating with a vaporiser 4, shaped in the form of a tube. At the left-hand end the vaporiser communicates through a connecting piece 5 with a distributing duct 6. The latter is provided with five jet ducts 7, each of which is provided with a stop valve controllable by a knob 8.

The jet duct near the left-hand end of the distributing duct is positioned opposite the opening of a mixed-gas duct 9, which communicates with the auxiliary burner 10.

A second jet duct is opposite a mixed-gas duct 11, which communicates with a burner 12, provided below an oven 13. The three further jet ducts are opposite the mixed-gas ducts 14 of three burners 15.

Below the auxiliary burner 10 provision is made of a container 16, which may be filled with spirit or a similar fuel.

In order to start this burner device, the spirit in the ice container 16 is lit, so that the vaporiser 4 is heated. When the temperature is sufficiently high to convert petroleum into gas, the stop valve 3 in the jet duct at the left-hand end of the distributing duct 6 is opened (after the stop valve 3 has, if necessary, been opened) and the auxiliary burner 10 is started.

When the stop valve 8 is opened, the petroleum vapour emerging from the associated jet duct 7 may condense in the opposite duct (9, 11 or 14), so that a very thin film or very small drops are formed. If afterwards the burner is made idle, the petroleum Will evaporate slowly and give off smell.

In order to avoid this a cap 17 is provided over the auxiliary burner 10 as clearly seen in Figs. 2 to 4 inclusive, this cap being arranged to collect part of the hot gases produced by the auxiliary burner. This cap communicates with three ducts 18, which conduct these gases along mixed-gas ducts 14. The temperature of the latter is thus maintained at such a high value that the risk of petroleum condensation in these ducts is eliminated.

The ducts 18 need not be provided below the mixedgas ducts of all burners. The additional heating is particularly of importance to those supply ducts which have the greatest length and are frequently, but comparatively transiently operative. The mixed-gas duct 9 for the auxiliary burner 10 is mostly heated to a suificient extent owing to radiation and conductivity of this burner. Nor does the mixed-gas duct 11 for the oven burner 12 require additional heating, since an oven burner is used less frequently, but for a long time. In this case the duct becomes sufliciently hot owing to heat from the burner 12.

The cap 17 over the auxiliary burner may be arranged on difierent levelsv In the arrangement shown in Figs. 1 and 2 the vaporiser 4 and the auxiliary burner 10 are positioned below the cap. This may involve that the distributing duct 6 becomes too cold. Then the distributing duct 6 may also be arranged below the cap, as is shown in Fig. 3. In these two cases the ducts 18 extend along the bottom sides of the mixed-gas ducts 14.

In the arrangement shown in Fig. 4 the cap 17 is arranged on a higher level; it is arranged in this case behind the jet duct 7 and communicates with a duct 18,

" which extends along the upper side of the mixed-gas duct 14. In this arrangement the heat produced by the auxiliary burner 10 may be used for a very great part to heat the vaporiser 4, the distributing duct 6 and the jet ducts 7. Only the heat which would otherwise get lost is conducted along the mixed-gas ducts.

The cap 17 need not extend throughout the length of the auxiliary burner. Its length may be chosen relatively to the quantity of heat required for heating the supply ducts of the burners.

Provisions must be made to prevent the hot gases from the auxiliary burner from entering the mixed-gas ducts. For this purpose the cap 17 is arranged at the side of and between the jet ducts 7 in the arrangement shown in Fig. 4, Whilst the ducts 18 conduct the hot gases past the inlet of the mixed-gas ducts.

' What is claimed is:

1. A gas burner device comprising a supply container for liquid fuel, a vaporizer connected to said supply container, a plurality of jet ducts, means communicating said vaporizer with said jet ducts, a plurality of burners each having a mixed-gas duct transporting fuel through each jet duct to each of said burners, one of said burners being adapted to give off heat produced to said vaporizer, and a cap mounted over said vaporizer for collecting the hot gases produced by said burner, said a a; v a i t 4 ,s cap being provided with a plurality of conduits conduct- References Cited in the file of this patent idnlgttshe gases adjacent to at least one of said mixed-gas UNITED STATES PATENTS 2. A gas burner device as set forth in claim 1 wherein 3901870 Lmdemann' 1888 said means communicating said vaporizer with said jet 5 996,436 Verret June 27, 1911 ducts includes a distributing duct, and said vaporizer, said 1560367 Bark Nov. 3, 1925 one burner and said distributing duct are all arranged 1222 32 11 1: 6

below said cap. 

1. A GAS BURNER DEVICE COMPRISING A SUPPLY CONTAINER FOR LIQUID FUEL, A VAPORIZER CONNECTED TO SAID SUPPLY CONTAINER, A PLURALITY OF JET DUCTS, MEANS COMMUNICATING SAID VAPORIZER WITH SAID JET DUCTS, A PLURALITY OF BURNERS EACH HAVING A MIXED-GAS DUCT TRANSPORTING FUEL THROUGH EACH JET TO EACH OF SAID BURNERS, ONE OF SAID BURNERS BEING ADAPTED TO GIVE OFF HEAT PRODUCED TO SAID VAPORIZER, AND A CAP MOUNTED OVER SAID VAPORIZER FOR COLLECTING THE HOT GASES PRODUCED BY SAID BURNER, SAID CAP BEING PROVIDED WITH A PLURALITY OF CONDUITS CONDUCTING THE GASES ADJACENT TO AT LEAST ONE OF SAID MIXED-GAS DUCTS. 